Sales: Printing, packaging, binding equipment and accessories, printing consumables (excluding ink), paper, paper products, mechanical equipment and accessories, technical promotion: Packaging design (excluding printing); Printing equipment leasing (excluding financial leasing and financing leasing), installation and maintenance; Import and export of goods and technologies (excluding goods and technologies that are restricted or prohibited by the state from being operated by enterprises) (Without approval from financial regulatory authorities, financial businesses such as deposit taking, financing guarantee, and customer wealth management are not allowed). (Projects that require approval according to law can only be operated with the approval of relevant departments)